The common term for a computer program that can replicate itself is a "computer virus." Computer viruses are designed to spread from one computer to another, often without the user's consent or knowledge. Once a virus infects a system, it can replicate and embed itself in other programs, files, or the operating system itself. Some viruses may cause harm by deleting files, stealing data, or compromising system performance, while others may simply propagate. Antivirus software is commonly used to detect and remove viruses, highlighting the importance of cybersecurity in protecting data and systems from malicious attacks.